If dragons were real, how would they fly and breathe fire?

Dragons are fantastical fairytale creatures that fly and breathe fire. They aren’t real, but there are animals that can do the things dragons do! So … if dragons did exist, how would they fly and breathe fire?  We asked science professor Dr. Mark Lorch to help us find the answer. Got a question that’s DRAGON you down? Send it to us at BrainsOn.org/contact, and we’ll fire off an answer!